Enhanced Electrochemical Performance of the Li2B12H12-Li2B10H10-LiBH4 Electrolyte

Chongyang Zhou; Yigang Yan; Torben R. Jensen

doi:10.1021/acsaem.3c00411

Enhanced Electrochemical Performance of the Li₂B₁₂H₁₂-Li₂B₁₀H₁₀-LiBH₄ Electrolyte

Chongyang Zhou, Yigang Yan^*, Torben R. Jensen^*

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

2 Citations (Scopus)

Abstract

High interfacial compatibility between electrolytes and electrodes is of great importance for the stable operation of all-solid-state batteries (ASSBs). Here, we report that the introduction of LiBH₄ into Li₂B₁₂H₁₂-5Li₂B₁₀H₁₀ improves the electrochemical window to ∼3.0 V and Li-ion conductivity to 1.0 × 10^-4 S cm^-1 at room temperature (RT). Moreover, the Li₂B₁₂H₁₂-5Li₂B₁₀H₁₀-6LiBH₄ electrolyte exhibits good compatibility with a metallic Li anode and TiS₂ cathode, allowing the stable operation of the all-solid-state In_1.3Li_0.3||TiS₂ cell for 120 cycles at 0.1 C and RT, with 117.8 mAh g^-1 of capacity and ∼100% of the coulombic efficiency. This work illustrates that a hydroborate electrolyte with high ionic conductivity and large electrochemical stability can enable the development of an ASSB with a voltage up to 2.7 V.

Original language	English
Journal	ACS Applied Energy Materials
Volume	6
Issue	14
Pages (from-to)	7346–7352
Number of pages	7
DOIs	https://doi.org/10.1021/acsaem.3c00411
Publication status	Published - 24 Jul 2023

Keywords

electrochemical stability
hydroborates
interfacial compatibility
Li-ion conductivity
solid-state lithium batteries

Access to Document

10.1021/acsaem.3c00411

Cite this

@article{d5a23cafbe3143aa9d0736596eba9359,

title = "Enhanced Electrochemical Performance of the Li2B12H12-Li2B10H10-LiBH4 Electrolyte",

abstract = "High interfacial compatibility between electrolytes and electrodes is of great importance for the stable operation of all-solid-state batteries (ASSBs). Here, we report that the introduction of LiBH4 into Li2B12H12-5Li2B10H10 improves the electrochemical window to ∼3.0 V and Li-ion conductivity to 1.0 × 10-4 S cm-1 at room temperature (RT). Moreover, the Li2B12H12-5Li2B10H10-6LiBH4 electrolyte exhibits good compatibility with a metallic Li anode and TiS2 cathode, allowing the stable operation of the all-solid-state In1.3Li0.3||TiS2 cell for 120 cycles at 0.1 C and RT, with 117.8 mAh g-1 of capacity and ∼100% of the coulombic efficiency. This work illustrates that a hydroborate electrolyte with high ionic conductivity and large electrochemical stability can enable the development of an ASSB with a voltage up to 2.7 V.",

keywords = "electrochemical stability, hydroborates, interfacial compatibility, Li-ion conductivity, solid-state lithium batteries",

author = "Chongyang Zhou and Yigang Yan and Jensen, {Torben R.}",

year = "2023",

month = jul,

day = "24",

doi = "10.1021/acsaem.3c00411",

language = "English",

volume = "6",

pages = "7346–7352",

journal = "ACS Applied Energy Materials",

issn = "2574-0962",

publisher = "American Chemical Society",

number = "14",

}

TY - JOUR

T1 - Enhanced Electrochemical Performance of the Li2B12H12-Li2B10H10-LiBH4 Electrolyte

AU - Zhou, Chongyang

AU - Yan, Yigang

AU - Jensen, Torben R.

PY - 2023/7/24

Y1 - 2023/7/24

N2 - High interfacial compatibility between electrolytes and electrodes is of great importance for the stable operation of all-solid-state batteries (ASSBs). Here, we report that the introduction of LiBH4 into Li2B12H12-5Li2B10H10 improves the electrochemical window to ∼3.0 V and Li-ion conductivity to 1.0 × 10-4 S cm-1 at room temperature (RT). Moreover, the Li2B12H12-5Li2B10H10-6LiBH4 electrolyte exhibits good compatibility with a metallic Li anode and TiS2 cathode, allowing the stable operation of the all-solid-state In1.3Li0.3||TiS2 cell for 120 cycles at 0.1 C and RT, with 117.8 mAh g-1 of capacity and ∼100% of the coulombic efficiency. This work illustrates that a hydroborate electrolyte with high ionic conductivity and large electrochemical stability can enable the development of an ASSB with a voltage up to 2.7 V.

AB - High interfacial compatibility between electrolytes and electrodes is of great importance for the stable operation of all-solid-state batteries (ASSBs). Here, we report that the introduction of LiBH4 into Li2B12H12-5Li2B10H10 improves the electrochemical window to ∼3.0 V and Li-ion conductivity to 1.0 × 10-4 S cm-1 at room temperature (RT). Moreover, the Li2B12H12-5Li2B10H10-6LiBH4 electrolyte exhibits good compatibility with a metallic Li anode and TiS2 cathode, allowing the stable operation of the all-solid-state In1.3Li0.3||TiS2 cell for 120 cycles at 0.1 C and RT, with 117.8 mAh g-1 of capacity and ∼100% of the coulombic efficiency. This work illustrates that a hydroborate electrolyte with high ionic conductivity and large electrochemical stability can enable the development of an ASSB with a voltage up to 2.7 V.

KW - electrochemical stability

KW - hydroborates

KW - interfacial compatibility

KW - Li-ion conductivity

KW - solid-state lithium batteries

UR - http://www.scopus.com/inward/record.url?scp=85165915430&partnerID=8YFLogxK

U2 - 10.1021/acsaem.3c00411

DO - 10.1021/acsaem.3c00411

M3 - Journal article

AN - SCOPUS:85165915430

SN - 2574-0962

VL - 6

SP - 7346

EP - 7352

JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

IS - 14

ER -

Enhanced Electrochemical Performance of the Li₂B₁₂H₁₂-Li₂B₁₀H₁₀-LiBH₄ Electrolyte

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this